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Earnings per Share Attributable to Ameriprise Financial, Inc. Common Shareholders
 12 Months Ended
Dec. 31, 2019
Earnings Per Share [Abstract]  
Earnings per Share Attributable to Ameriprise Financial, Inc. Common Shareholders Earnings per Share
The computations of basic and diluted earnings per share is as follows:
 
Years Ended December 31,
2019
 
2018
 
2017
(in millions, except per share amounts)
Numerator:
 
 
 
 
 
Net income
$
1,893

 
$
2,098

 
$
1,480

 
 
 
 
 
 
Denominator:
 
 
 
 
 
Basic: Weighted-average common shares outstanding
134.1

 
145.6

 
154.1

Effect of potentially dilutive nonqualified stock options and other share-based awards
1.9

 
2.1

 
2.6

Diluted: Weighted-average common shares outstanding
136.0

 
147.7

 
156.7

 
 
 
 
 
 
Earnings per share attributable to Ameriprise Financial, Inc. common shareholders:
 
 
 
 
 
Basic
$
14.12

 
$
14.41

 
$
9.60

Diluted
$
13.92

 
$
14.20

 
$
9.44


The calculation of diluted earnings per share excludes the incremental effect of 1.0 million, 3.2 million and nil options as of December 31, 2019, 2018 and 2017, respectively, due to their anti-dilutive effect.